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Getting value of select (dropdown) before change
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Combine the focus event with the change event to achieve what you want:
(function () {
var previous;
$("select").on('focus', function () {
// Store the current value on focus and on change
previous =...
MySQL: Fastest way to count number of rows
...tely after the data selecting query.
In conclusion, everything actually comes down to how many entries you have and what is in the WHERE statement. You should really pay attention on how indexes are being used, when there are lots of rows (tens of thousands, millions, and up).
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How can an html element fill out 100% of the remaining screen height, using css only?
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330
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Maven2: Missing artifact but jars are in place
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59
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undefined reference to boost::system::system_category() when compiling
I'm trying to compile a program on Ubuntu 11.10 that uses the Boost libraries. I have the 1.46-dev Boost libraries from the Ubuntu Repository installed, but I get an error when compiling the program.
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Download JSON object as a file from browser
...ot jQuery here):
var dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(storageObj));
var dlAnchorElem = document.getElementById('downloadAnchorElem');
dlAnchorElem.setAttribute("href", dataStr );
dlAnchorElem.setAttribute("download", "scene.json");
dlAnchorElem.c...
Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
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Most compilers have their own specifier for size_t and ptrdiff_t arguments, Visual C++ for instance use %Iu and %Id respectively, I think that gcc will allow you to use %zu and %zd.
You could create a macro:
#if defined(_MSC_VER...
Convert JSON String To C# Object
...;
More information can be found in this tutorial:
http://www.codeproject.com/Tips/79435/Deserialize-JSON-with-Csharp.aspx
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read file from assets
... //log the exception
}
}
}
EDIT
As @Stan says in the comment, the code I am giving is not summing up lines. mLine is replaced every pass. That's why I wrote //process line. I assume the file contains some sort of data (i.e a contact list) and each line should be processed separ...
How do I make a JAR from a .java file?
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Open a command prompt.
Go to the directory where you have your .java files
Create a directory build
Run java compilation from the command line
javac -d ./build *.java
if there are no errors, in the build directory you should h...